<template>
  <div class="dashboard-container">
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height:60px">
              <el-button
                icon="el-icon-plus"
                size="small"
                type="primary"
                @click="hAdd"
              >新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="rolesLise" style="width: 100%">
              <el-table-column label="序号" width="120" type="index" />
              <el-table-column label="角色名称" width="240" prop="name" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template #default="{row}">
                  <el-button size="small" type="success">分配权限</el-button>
                  <el-button size="small" type="primary" @click="hEdit(row)">编辑</el-button>
                  <el-button size="small" type="danger" @click="hDel(row.id)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row type="flex" justify="center" align="middle" style="height: 60px">
              <!-- 分页组件 -->
              <el-pagination
                :current-page="pageParams.page"
                :page-sizes="[2, 3, 5, 10]"
                :page-size="pageParams.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total"
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
              />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
      <!-- 新增和编辑的弹层 -->
      <el-dialog
        :title="isEdit ? '编辑' : '新增'"
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :visible.sync="showDialog"
        @closed="hClose"
      >
        <el-form ref="roleForm" :model="roleForm" :rules="rules" label-width="100px">
          <el-form-item label="角色名称" prop="name">
            <el-input v-model="roleForm.name" />
          </el-form-item>
          <el-form-item label="角色描述" prop="description">
            <el-input v-model="roleForm.description" />
          </el-form-item>
        </el-form>
        <!-- 底部 -->
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small" @click="showDialog=false">取消</el-button>
            <el-button size="small" type="primary" @click="hSubmit">确定</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getRoles, deleteRoles, addRole, editRole } from '@/api/setting'
export default {
  data() {
    return {
      roleForm: {
        name: '',
        description: ''
      },
      rules: {
        name: [{ required: true, message: '角色名称不能为空', trigger: 'blur' }],
        description: [{ required: true, message: '角色描述不能为空', trigger: 'blur' }]
      },
      isEdit: false,
      showDialog: false, // 控制弹层的显示与隐藏
      pageParams: {
        page: 1, // 页码值
        pagesize: 2 // 每页条数
      },
      rolesLise: [], // 角色列表
      total: 0 // 总的条数
    }
  },
  computed: {
    // 添加后显示对应的页面
    maxPage() {
      return Math.ceil(this.total / this.pageParams.page)
    },
    pageFull() {
      return this.total % this.pageParams.pagesize === 0
    }
  },
  created() {
    this.loadRoles()
  },
  methods: {
    hClose() {
      this.roleForm = {
        name: '',
        description: ''
      }
      this.$refs.roleForm.resetFields()
    },
    hAdd() {
      this.showDialog = true
      this.isEdit = false
    },
    // 实现编辑
    hEdit(row) {
      this.showDialog = true
      this.roleForm = { ...row }
      this.isEdit = true
    },
    // 实现新增
    async doAdd() {
      try {
        const res = await addRole(this.roleForm)
        this.$message.success(res.message)
        console.log(res)
        this.showDialog = false
        // 将当前的页码值,改为最后一页的值
        this.pageParams.page = this.maxPage
        if (this.pageFull) {
          this.pageParams.page++
          // 页码值显示对应的添加页码值上
          this.total++
        }
        this.loadRoles()
      } catch (error) {
        console.log(error)
      }
    },
    // 实现编辑
    async doEdit() {
      try {
        await editRole(this.roleForm)
        this.showDialog = false
        this.loadRoles()
      } catch (error) {
        console.log(error)
      }
    },
    // 实现提交
    hSubmit() {
      // 兜底校验
      this.$refs.roleForm.validate(valid => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 实现删除
    async doDel(id) {
      try {
        await deleteRoles(id)
        if (this.rolesLise.length === 1) {
          this.pageParams.page--
          // 当数据剩最后一条时删除控制默认一条
          if (this.pageParams.page <= 1) {
            this.pageParams.page = 1
          }
        }
        this.loadRoles()
        this.$message.success('删除成功!')
      } catch (error) {
        console.log(error)
      }
    },
    // 删除角色
    hDel(id) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 确定
        this.doDel(id)
      }).catch(() => {
        // 取消
      })
    },
    // 员工角色信息
    async  loadRoles() {
      try {
        const res = await getRoles(this.pageParams)
        console.log(res, 'getRoles')
        this.rolesLise = res.data.rows
        this.total = res.data.total
      } catch (error) {
        console.log(error)
      }
    },
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      // 切换页码值时恢复默认页
      this.pageParams.page = 1
      this.pageParams.pagesize = val
      this.loadRoles()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.pageParams.page = val
      this.loadRoles()
    }
  }
}
</script>

<style scope>

</style>
